Linear furocoumarin accumulation in celery plants infected with erwinia carotovora pv. carotovora

Surico, G.; Varvaro, L.; Solfrizzo, Michele

doi:10.1021/jf00075a030

Cited by 28 publications

(16 citation statements)

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“…After infection of celery by the pathogenic bacterium Erwinia carotovora the content of psoralen, xanthotoxin, and bergapten increased from <2.5 mg/kg (fresh weight) in healthy tissues to > 20 mg/kg in putrefied tissues (34). Therefore it was hypothesized that furanocoumarins may play an important role in the defense of microbial infections.…”

Section: Distribution and Ecologic Functions Biochemistry Ofselected mentioning

confidence: 99%

Selected Phenolic Compounds in Cultivated Plants: Ecologic Functions, Health Implications, and Modulation by Pesticides

Daniel¹,

Meier²,

Schlatter³

et al. 1999

Environmental Health Perspectives

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Phenolic compounds are widely distributed in the plant kingdom. Plant tissues may contain up to several grams per kilogram. External stimuli such as microbial infections, ultraviolet radiation, and chemical stressors induce their synthesis. The phenolic compounds resveratrol, flavonoids, and furanocoumarins have many ecologic functions and affect human health. Ecologic functions include defense against microbial pathogens and herbivorous animals. Phenolic compounds may have both beneficial and toxic effects on human health. Effects on lowdensity lipoproteins and aggregation of platelets are beneficial because they reduce the risk of coronary heart disease. Mutagenic, cancerogenic, and phototoxic effects are risk factors of human health. The synthesis of phenolic compounds in plants can be modulated by the application of herbicides and, to a lesser extent, insecticides and fungicides. The effects on ecosystem functioning and human health are complex and cannot be predicted with great certainty. The consequences of the combined natural and pesticide-induced modulating effects for ecologic functions and human health should be further evaluated. -Environ Health Perspect 1 07(Suppl 1): 109-114 (1999). http://ehpnetl.niehs.nih.gov/docs/1999/Suppl-1/ 109-1 14daniel/abstract.html

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Section: Distribution and Ecologic Functions Biochemistry Ofselected mentioning

confidence: 99%

Selected Phenolic Compounds in Cultivated Plants: Ecologic Functions, Health Implications, and Modulation by Pesticides

Daniel¹,

Meier²,

Schlatter³

et al. 1999

Environmental Health Perspectives

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“…

The biological activities [15] of the phenylpropanoids and their role as antimicrobial agents [16,17] is well recognised, as well as their properties as antiallergic and anti-inflammatory agents through lipoxygenase inhibition [18] and their antimutagenic actions [19,20].In this study we have examined the antioxidant properties of the hydroxycinnamic acids in terms of their abilities to increase the resistance of low density lipoproteins (LDL) to cholesterol oxidation, lipid peroxidation and oxidative modification of the apoprotein B,j 0. The results show that the sequence of the effectiveness against lipid peroxyl radicals generated in the lipophilic phase of LDL and in protecting LDL cholesterol from oxidation is: chlorogenic = caffeic > ferulic > p-coumaric acid.

…”

mentioning

confidence: 99%

“…The biological activities [15] of the phenylpropanoids and their role as antimicrobial agents [16,17] is well recognised, as well as their properties as antiallergic and anti-inflammatory agents through lipoxygenase inhibition [18] and their antimutagenic actions [19,20].…”

mentioning

confidence: 99%

Antioxidant potential of intermediates in phenylpropanoid metabolism in higher plants

et al. 1995

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“…The observation that tissue or cellular concentrations of many photosensitizers increase following exposure to pathogens, or other biotic or abiotic elicitors, suggests that they may also function as phytoalexins to prevent the spread of pathogenic organisms following initial infection. Phytoalexin responses have been demonstrated for various acetylenes (Thomas & Allen, 1970;Allen & Thomas, 1971 a-c;de Wit & Kodde, 1981;Elgersma & Overeem, 1981;DiCosmo, Towers & Lam, 19B2o;Takasugi et al. 1987), furanocoumarins (Johnson, Brannon & Kuc, 1973;Chappell & Hahlbrock, 1984;Hauffe, Hahlbrock & Scheel, 1986;Surico, Varvaro & Solfrizzo, 1987), sesquiterpenes (Essenberg et al, 1982;Essenberg et al, 1985;Essenberg, Grover & Cover, 1990) and thiophenes (Kourany, 1986;Kourany, Arnason & Schneider, 1988). The involvement in plant defence of each of these phytochemical classes is considered separately below.…”

Section: Bacteria and Fungimentioning

confidence: 99%

Light‐activated plant defence

Downum

1992

New Phytologist

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summary Sunlight provides the energy required for all biochemical, physiological and developmental processes necessary for plant growth, reproduction and survival. The role of light in photosynthesis and photomorphogenesis has been appreciated for some time; however, the role of light in plant defence is a comparatively recent realization. Between 75–100 photosensitizers or phototoxins, molecules that become toxic in the presence of light, have been extracted from higher plant tissues. These biologically‐active compounds have diverse biosynthetic origins and belong to at least 15 different phytochemical classes (i.e. acetophenones, acetylenes, benzophenanthrenes, β‐carbolines, coumarins, extended quinones, furanochromones, furanocoumarins, furanoquinolines, isoquinolines, lignans, pterocarpans, quinolines, sesquiterpenes and thiophenes). Of more than 100 angiosperm families assayed, phototoxins and/or phototoxic activity have been reported in c. 40 families representing 32 orders and 8 subclasses of the Magnoliophyta. Most of these allelochemicals are acute toxins with little organism‐specificity. As such, they are effective biocides capable of killing a wide‐range of potentially harmful organisms including: viruses, pathogenic bacteria and fungi, nematodes and herbivorous insects, as well as competing plant species. This review focuses on the phytochemistry, taxonomic occurrence and toxicological consequences of phototoxic metabolites in flowering plants. The available information suggests that phototoxic phytochemicals: (i) are broad‐spectrum allelochemicals capable of protecting plants against a variety of detrimental organisms in nature, (ii) represent a successful defensive strategy in both primitive and advanced plant taxa, and (iii) may be an effective defence under a variety of photoenvironmental conditions.

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Linear furocoumarin accumulation in celery plants infected with erwinia carotovora pv. carotovora

Cited by 28 publications

References 2 publications

Selected Phenolic Compounds in Cultivated Plants: Ecologic Functions, Health Implications, and Modulation by Pesticides

Selected Phenolic Compounds in Cultivated Plants: Ecologic Functions, Health Implications, and Modulation by Pesticides

Antioxidant potential of intermediates in phenylpropanoid metabolism in higher plants

Light‐activated plant defence

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